Communication with MS Exchange Server fails since installing Security Update For Exchange Server 2019 CU13

[IngoWolf]

We communicate with MS Exchange Server by means of Exchange Web Services via https://github.com/miyako/4d-plugin-curl-v3 (latest release 4.6.2 ) to access calendar items.

Some customers installed the Security Update For Exchange Server 2019 CU13 and from that point on authentication (via NTLM) fails with http 401.
Is there anything you know about? Could you please build an updated version of the plugin with cURL 8.6.0 (in the hope it fixes the problem)?

THX
Ingo Wolf

[miyako]

Is there anything you know about?

no, I don't use this plugin myself and I don't use NTLM.

Could you please build an updated version of the plugin with cURL 8.6.0 (in the hope it fixes the problem)?

I need proof that a libcurl update actually addresses the issue.

[miyako]

https://learn.microsoft.com/en-us/answers/questions/1329551/outlook-login-issues-after-exchange-2019-cu13-and?cid=kerryherger

[miyako]

https://curl-library.cool.haxx.narkive.com/fEAbRLLQ/libcurl-with-ntlm-and-kerberos-authentication

[miyako]

just google top searches, no idea if the information is relevant or not.